9-letter words starting with O
Embark on a linguistic journey with words that begin with the letter O. This section showcases how O at the start shapes the identity and sound of various words. From commonly used terms to rare finds, explore the diverse range of words that start with O, enriching your vocabulary and appreciation for language.
- otherwise 15
- ourselves 12
- obviously 17
- operation 11
- organized 20
- objection 20
- overnight 16
- orphanage 15
- operating 12
- objective 23
- orchestra 14
- obsession 11
- offensive 18
- overboard 15
- occasions 13
- organised 11
- observing 15
- overheard 16
- offspring 18
- operative 14
- ownership 17
- obsessive 14
- overrated 13
- oppressed 14
- obedience 14
- outskirts 13
- obnoxious 18
- overslept 14
- overthrow 18
- obligated 13
- oblivious 14
- outlander 10
- occurring 14
- offending 17
- overdoing 14
- oversight 16
- overruled 13
- observant 14
- obstinate 11
- overjoyed 23
- overdosed 14
- overpower 17
- organizer 19
- overreact 14
- oversized 22
- obscenity 16
- obscurity 16
- overwhelm 20
- outnumber 13
- opportune 13
- overgrown 16
- orangutan 10
- ordinance 12
- outspoken 15
- originate 10
- overdrive 16
- olfactory 17
- occipital 15
- onslaught 13
- ovulation 12
- oppressor 13
- overdraft 16
- obstinacy 16
- oligarchy 18
- overblown 17
- oversleep 14
- organiser 10
- occupancy 20
- outwardly 16
- opposable 15
- outsource 11
- orthodoxy 23
- obeisance 13
- officiate 17
- oxidation 17
- outgunned 11
- outwitted 13
- outfitted 13
- outdoorsy 13
- overstate 12
- outlining 10
- oversexed 20
- objectify 26
- overheads 16
- octopuses 13
- overwatch 20
- obsequies 20
- officious 17
- osteopath 14
- ombudsman 16
- obliquely 23
- occlusion 13
- oestrogen 10
- overshoot 15
- orientate 9
- obscenely 16
- overtired 13
- overexert 19
- outmanned 12
- outrigger 11
- overeager 13
- outermost 11
- occultist 13
- oceanside 12
- octagonal 12
- odourless 10
- overwrite 15
- orgiastic 12
- outgoings 11
- ominously 14
- oscillate 11
- oxygenate 20
- orangeade 11
- orienting 10
- obtrusive 14
- occultism 15
- ownerless 12
- overusing 13
- outhouses 12
- onrushing 13
- otherness 12
- overflown 18
- obfuscate 16
- outfought 16
- obliquity 23
- obscurely 16
- ostracize 20
- obturator 11
- outscored 12
- overmatch 19
- ostracism 13
- overstock 18
- odalisque 19
- offertory 18
- outliving 13
- osteology 13
- overlying 16
- overreach 17
- oviparous 14
- optimally 16
- oakleaves 16
- oakmosses 15
- oarfishes 15
- oarswoman 14
- oarswomen 14
- oasthouse 12
- obbligati 14
- obbligato 14
- obconical 15
- obcordate 14
- obdurated 13
- obdurates 12
- obeliscal 13
- obelising 12
- obelizing 21
- obeseness 11
- obesogens 12
- objecting 21
- objectors 20
- objurgate 19
- obligants 12
- obligatos 12
- obliquest 20
- obliquing 21
- oblivions 14
- obloquial 20
- obovately 17
- obreption 13
- obscenest 13
- obscurant 13
- obscurers 13
- obscurest 13
- obscuring 14
- obsecrate 13
- obsequent 20
- obsequial 20
- obsidians 12
- obsignate 12
- obsolesce 13
- obsoleted 12
- obstetric 13
- obstructs 13
- obstruent 11
- obtainers 11
- obtaining 12
- obtempers 15
- obtending 13
- obtention 11
- obtesting 12
- obtruders 12
- obtruding 13
- obtrusion 11
- obtundent 12
- obtunding 13
- obtundity 15
- obturates 11
- obumbrate 15
- obvention 14
- obversely 17
- obversion 14
- obverting 15
- obviating 15
- obviation 14
- obviators 14
- obvoluted 15
- obvolvent 17
- occidents 14
- occludent 14
- occluders 14
- occluding 15
- occlusive 16
- occlusors 13
- occulters 13
- occulting 14
- occupance 17
- occupants 15
- occupated 16
- occupates 15
- occupiers 15
- octachord 17
- octahedra 15
- octameter 13
- octangles 12
- octapodic 16
- octaroons 11
- octastich 16
- octastyle 14
- octennial 11
- octillion 11
- octohedra 15
- octopodan 14
- octopodes 14
- octoroons 11
- octostyle 14
- octothorp 16
- octuplets 13
- octupling 14
- ocularist 11
- odaliques 19
- oddnesses 11
- oddsmaker 17
- odiferous 13
- odographs 16
- odometers 12
- odonatist 10
- odontalgy 14
- odontists 10
- odontoids 11
- odontomas 12
- odorisers 10
- odorising 11
- odorizers 19
- odorizing 20
- odorously 13
- oecologic 14
- oecumenic 15
- oedipally 15
- oedometer 12
- oeillades 10
- oenanthic 14
- oenomania 11
- oenometer 11
- oenophile 14
- oenophils 14
- oenophily 17
- oenothera 12
- oerlikons 13
- oesophagi 15
- oestriols 9
- oestrones 9
- oestruses 9
- offenders 16
- offerable 17
- offerings 16
- offhanded 20
- officered 18
- officials 17
- officiant 17
- officiary 20
- officinal 17
- offloaded 17
- offprints 17
- offsaddle 17
- offscreen 17
- offseason 15
- offshoots 18
- offshored 19
- offshores 18
- offsiders 16
- offstages 16
- oftenness 12
- oganesson 10
- oghamists 15
- ogreishly 16
- ohmically 19
- ohmmeters 16
- oilcloths 14
- oilfields 13
- oilpapers 13
- oilstones 9
- ointments 11
- oiticicas 13
- okeydokey 24
- oldnesses 10
- oldsquaws 22
- oldstyles 13
- oleaceous 11
- oleanders 10
- oleasters 9
- olecranal 11
- olecranon 11
- oleograph 15
- oleoresin 9
- olfacting 15
- olfaction 14
- olfactive 17
- omnivores 14
- omohyoids 18
- omophagia 17
- omophagic 19
- omophoria 16
- omoplates 13
- omphacite 18
- ozonizing 28
- onboarded 13
- oncidiums 14
- oncogenes 12
- oncogenic 14
- oncologic 14
- oncolyses 14
- oncolysis 14
- oncolytic 16
- oncometer 13
- oncomings 14
- oncomouse 13
- oncostman 13
- oncostmen 13
- oncovirus 14
- ondograms 13
- ondograph 16
- ongaongas 11
- onioniest 9
- onionskin 13
- onloading 11
- onlookers 13
- onlooking 14
- onomastic 13
- onsetters 9
- onsetting 10
- onshoring 13
- ontically 14
- ontogenic 12
- ontologic 12
- onychites 17
- onychitis 17
- onychiums 19
- ooftishes 15
- oogametes 12
- oogeneses 10
- oogenesis 10
- oogenetic 12
- oogoniums 12
- oolachans 14
- oolichans 14
- oological 12
- oologists 10
- oompahing 17
- oompahpah 21
- oomycetes 16
- oophorons 14
- oospheres 14
- oosporous 11
- opacified 17
- opacifier 16
- opacifies 16
- opacities 13
- opalesced 14
- opalesces 13
- opensides 12
- openworks 18
- operagoer 12
- operantly 14
- operatics 13
- operatise 11
- operatize 20
- operators 11
- operceles 13
- opercular 13
- opercules 13
- operculum 15
- operettas 11
- operosely 14
- operosity 14
- ophidians 15
- ophiolite 14
- ophiology 18
- ophiurans 14
- ophiurids 15
- ophiuroid 15
- opinioned 12
- opiumisms 15
- opobalsam 15
- opodeldoc 15
- oppilated 14
- oppilates 13
- opponency 18
- opponents 13
- opposably 18
- opposites 13
- oppresses 13
- oppugnant 14
- oppugners 14
- oppugning 15
- opsimaths 16
- opsimathy 19
- opsomania 13
- opsonised 12
- opsonises 11
- opsoniums 13
- opsonized 21
- opsonizes 20
- optatives 14
- optically 16
- opticians 13
- opticists 13
- optimates 13
- optimised 14
- optimiser 13
- optimises 13
- optimisms 15
- optimists 13
- optimized 23
- optimizer 22
- optimizes 22
- optionals 11
- optionees 11
- optioning 12
- optometer 13
- optometry 16
- optophone 16
- optronics 13
- opulences 13
- opulently 14
- opuscular 13
- opuscules 13
- opusculum 15
- oraculous 11
- oralities 9
- orangerie 10
- orangiest 10
- oratorial 9
- oratorian 9
- oratories 9
- oratorios 9
- oratrices 11
- oratrixes 16
- orbicular 13
- orbitally 14
- orchellas 14
- orchestic 16
- orchidist 15
- orchillas 14
- ordainers 10
- ordaining 11
- ordaliums 12
- orderable 12
- orderings 11
- orderless 10
- orderlies 10
- ordinaire 10
- ordinally 13
- ordinands 11
- ordinants 10
- ordinated 11
- ordinates 10
- ordnances 12
- orebodies 12
- oreodonts 10
- orepearch 16
- orestunck 15
- organdies 11
- organelle 10
- organical 12
- organises 10
- organisms 12
- organists 10
- organizes 19
- organosol 10
- organotin 10
- organzine 19
- orgasming 13
- orgillous 10
- oribatids 12
- oricalche 16
- orichalcs 16
- oriencies 11
- orientals 9
- orienteer 9
- orienters 9
- orificial 14
